And someone - well many someones - have to manage it all.
|The modern Control Centre at Shanwick.|
I can see from the mouth of my cave, planes coming into and out of my local airport, and I can see the flight details, height and speed, aircraft type, destination etc on my computer.
It will show me everywhere in the world in almost real time. Other programs allow me to listen to the controllers. There are even cameras one can access at airports around the world.
Just waiting and watching at an airport shows the steady flow, but slowly. Real time takes patience. Speed it up a bit and one sees this......
Planes come over from all over and go out to all over. Rivers are formed with electronic banks. They can run deep, upward. The controllers paddle like the hounds of Hell are on their heels.
Just getting London's traffic in and out safely is a major exercise. But most folk never give it a thought.
Just as our modern technology enables us to see all, back in the day when I did it, the radar bounced signals off the planes. Then they rolled-out 'secondary' radar which 'interrogated' the plane for information that was transmitted back. I found that a boon. That's how the Flightradar24 works and how the modern tool of the trade is now a mosaic that has information displayed on demand.